Type VII, buffered aqueous glycerol solution, 350-600 units/mg protein

Type III, lyophilized powder, 350-600 units/mg protein

recombinant, expressed in E. coli; 0.1-0.3 mg protein/ml (Bradford); ≥100 unit/μg protein;

10 units/μL, buffered aqueous glycerol solution

lyophilized powder, ≥4.0 units/mg protein

lyophilized powder, 400-1,200 units/mg solid

lyophilized powder, ≥150 units/mg protein (biuret)

ammonium sulfate suspension, ≥1000 units/mg protein